i believe that diplomacy should be the cornerstone of any foreign policy. >> and i can see russia from my house! >> seems like yesterday when you watch that, but it's been four and a half years since tina fey introduced her stunning impression of sarah palin on "saturday night live." and just when tina fey fans thought they had seen the last of that palin impression, one man, the only man who could do this, was able to get her to do it once again tuesday night. >> would you allow me to introduce sarah palin, please? >> we could try. >> i'm the one taking the chance, not you, pal. you asked joe biden if you could call him "joe." >> uh-huh. >> shall i address you as governor? you served only half a term, so what's the right term of address? >> well, i'll tell ya, i don't know. and i'm a half governor or you could call me a maverick at large. >> perhaps gov. >> gov would be fine by me too. >> i know that you're very fond of shooting wolves from a helicopter. which is understandable enough. have your views on gun laws or wolves changed at all? >> you know, jimmy, i believe that if everybod